#define   _CRT_SECURE_NO_WARNINGS  1
#include<stdio.h>
int main()
{
	float a = 0;
	int arr[] = { 1, 2, 3, 4, 5, 6 , 7, 8, 9, 10 };
	for (int i = 0; i < 10; i++)
		a += arr[i];

	
	
	printf("%f", a / 10);

		return 0;
}